Keel for submarine boats



(No Model.) 2 sheets-sum1.

W. HAMMOND.

REEL FOR SUBMARINE BUATS.

' Patented Aug.L 19, 1884.

MafJc lmlrfrm:

MTC/M MIWESEEE:

2 Sieets-Sheet; 2,

(No Model.)

W. HAMMOND.

KEBL POR SUBMARINB BOATS.

.Patented Aug..l9, i884.

lI\IO.3()3,8113.

qdErVI-mr;

WHLUEESEE:

mqo/ Wma/@ 'VIH N, vains. nam-umm@ w en D c UNTTsn STATES PATENT @TriesVALTER HAMMOND, .OF ALTIMORE, MARYLAND.

KEEL FOR SUB'MARINE BOATS.

SPECIFICATION' forming part of Letters Patent No. 303,843, dated August19, 1884.

Application filed Januarv S, 18S-l. (No model.)

To @ZZ whom it may concern:

Bc it known that I, WALTER Hmiironn, a citizen ol" the United States,and a resident of Baltimore, county of Baltimore, Stateof Maryland, haveinvented new and useful AIniprovements in .leels of Submarine Boats, ofwhich the following is a full and exact deseri ption, reference beinghad to the accompanying drawings, making part of this specification.

illy invention relates to improvements in keels of submarine boats; andit consists in providing cylinders or air-tubes,water-tanks, adetachable keel, a propeller, a rudder, and a torpedo-box, all adaptedto work together and to be operated and controlled by attendants withinthe boat, and the objects of my improvements are, first, to providemeans for sinking the boat to any depth required; second, to raise theboat in the water to any height required; third, to sustain the boat atany point under water; fourth, to move the boatwhile under water to anypoint desired in order to examine or attack an obj eet below thewater-line. l attain these objects by the mechanism illustrated in theaccompanying drawings, inwhich Figure l. is a longitudinal section of mysubmarine boat. Fig. 2 is a cross-section. Figs. 3 and 4 are alternatemethods ol' suspending the detachable keel. Fig. 5 is a duplex cock forintroduei n g air into cylinders, water-tanks, and boat. Fig. l5 is acut-off to cover perforations made to admit the lug of detachable keelwhen the keel is dropped.

Similarletters refer to similar parts throughout the several Views, inwliieh A is the hull or fra-me of the boat, and may be huilt of wood,iron, steel, or other suitable material, and may be built in any shapedesired with perl'orations in keel to admit the lug Oi' the iron weightssuspended.

B B are air tubes or cylinders suspended. by means of bracket-bars,hooks, ropes, or other suitable eontrivance through the length, breadth,or on the inside or outside of boat, and may he made of india-rubber,rubberlined cloth, canvas, or other suitable material, and are capableol" inilation and discharge at will by attendants within the boat, andare provided with vents and valve-cock C C, so that the air fromcylinders may he admitted into boat and used for purposes ofrespiration.

D D is a detachable iron keel, and may be constructed of one or more`parts provided with lugs,which pass through slots or perforations madein keel ol' boat, and are suspended by means of pins passing throughslot in lugs, as shown in drawings, Fig. 8, a modilcation of which isshown in Fig. 4, in which H is a pin attached to the iron weight D, andis made to pass through a. slot in keel. I is a chain attached to thepin H and the ,hook-lever J, and may be detached instantly by strikingthe bar F in Fig. 3, or by tripping the hook-lever J in Fig. 4. E Earethe lugs of detachable keel, which pass through the slots orperforations made in the keel of boat, andare provided with slots inwhich the pins F F move to suspend the keel. G- G are the water-tanksprovided withvalves to admit and discharge the water and hose-couplingsto admit the air, and are used in combinatioirwith the air-tubes anddetachable keel to raise and lower the boat in the water. 'll I .l are acombination of lever, pin, and chain to act as an alternate means ofsuspending the detachable keel.

K K are bracket-bars, made in any manner to hold in position the airtubes or cylinders.

L is an ordi nary union or T joint in combination with the valves m m m,to control the introduction of air from the air pump or iloat.

M is an ordinary hose, connecting the submarine boat with the air-pump.

Nis a torpedo-box, and may be used as a place from which to work adrillfor the'purpose oi' boring holes into the bottom or side of a ship andintroducing explosive material.

O is an air-pump, and may he of any kind required, and can be located onthe shore or on board aboat or lloat, or it may be located in thesubmarine boat and receive its air from a valve-iloat attached to theboat.

'P P is the armor-plated shell used when the boat is employed as atorpedo-boat.

Q is the elongated slot in the lug of the detachable keel, in which thepin is inserted to suspend the detachable keel.

It R are `grated windows used pose of observation.

S is the propeller.

T and T are water-tight doors to torpedobox. T is opened to prepareaFish or other for the pur- IOC) suitable torpedo, and when all is inreadiness T is closed and T is opened, and the torpedo; floats up intoposition, and when the boat has y moved to a safe distance is exploded.

U is the rudder which guides the boat.

V is an air-valve to allow the escape of air from cylinders or boat.

W is a cut-off or slide-valve,which is moved over the slot orperforation in the keel to prevent water from entering the boat when thedetachable weights are dropped to allow the boat to rise to surface.

The operation of my invention is as follows:I rIlhc iron weights, whichform the extra keel, being attached, the cylinders or air-tubes arepartially inflated to balance the weight ofthe keel, and the boat ismoved forward in the water by means of the propeller to the place whereit is desired to sink it. rIhc valves connected with the water-tanks andthe vents connected with the aircylinders are then opened, and as thewater-tanks fill and the air escapes from the air-cylinders the boatsinks until the required depth is reached, when the valves and vents areclosed and the cylinders or tubes are inflated until a state of buoyancyis attained, and the equipoisc of theboat is maintained by the inflationor discharge of the air-cylinders, and may be aided bythe introductionand expulsion ot' water in the tanks. The boat is now in a condition tomove forward under water to any posit-ion desired by means of thepropeller and rudder operated by persons within the boat.

As indicating the statcvol the art in respect to air-receptacles andmeans for Ventilating submarine and other vvessels, I am aware thatcylindrical wrappers made ot strong and thin material and inflatedI withan air-pump have been used, and do not claim air cylinders broadly.V Iam also aware that water-tanks have been used for the purpose of sinkingor waterlogging vessels, and do not claim watercompartments broadly.

I am alsoA aware that air-pumps have been scribed.

used for the purpose of compressing air in airtight compartments, andfor the purpose of expelling foul air, and do not claim an airpumpbroadly.

I am also aware that a detachable iron keel has been used in atorpedo-boat held by means of electro-magnets, and detached by breakingthe circuit, and do not claim a detachable keel held in position byelectro-magnets and released by breaking the circuit; but

\Vhat I do claim, and desire to secure by Letters Patent, :is-

l. In a submarine boat, a heavy keel attached to said boat by means ofslotted -pins or lugs E, and retained in position by pins passingtransversely through the slots in said pins E, substantially as and forthe purpose set forth and described.

2. In a submarine boat, a heavy keel attached to said boat by meansofthe slotted pins E, passin g through suitable perforations in keelofsaid boat, in combination with the bar F, having the dependent anglesF, substantially as and fo11 the purpose set forth and described.

3. In a submarine boat, aheavy keel, l), attached to said boat by meansoi" the pin H, chain I, and, lever J, substantially as and for thepurpose set forth and described.

4t. In a submarine boat, a heavy keel being made in sections, each beingseparately detachable by means of the slotted pin E, and bar F, providedwith the dependents F', substantially as and for the purpose set forthand described.

5. rIhe keel D, provided with the pin E, in combination with thecut-oli' valve W, substantially as and for the purpose set forth and de-In testimony whereof Ihave hereunto set my hand this 7th day of January,A. D. 1884.

TAL-TER HAMMOND.

.lVituesses:

E. F. MURDooK, A. MCMURRAY.

